[v2,04/15] dt-bindings: display: bridge: renesas,dsi: Add support for RZ/V2H(P) SoC

Commit Message

Lad, Prabhakar April 8, 2025, 8:09 p.m. UTC

From: Lad Prabhakar <[e-mail]>

The MIPI DSI interface on the RZ/V2H(P) SoC is nearly identical to that of
the RZ/G2L SoC. While the LINK registers are the same for both SoCs, the
D-PHY registers differ. Additionally, the number of resets for DSI on
RZ/V2H(P) is two compared to three on the RZ/G2L.

To accommodate these differences, a SoC-specific
`renesas,r9a09g057-mipi-dsi` compatible string has been added for the
RZ/V2H(P) SoC.

Signed-off-by: Lad Prabhakar <[e-mail]>
Reviewed-by: Krzysztof Kozlowski <[e-mail]>
---
v1->v2:
- Added enum for RZ/V2H as suggested by Krzysztof as the list
  will grow in the future (while adding RZ/G3E SoC).
- Added Reviewed-by tag from Krzysztof.
---
 .../bindings/display/bridge/renesas,dsi.yaml  | 116 +++++++++++++-----
 1 file changed, 87 insertions(+), 29 deletions(-)

Patch

diff --git a/Documentation/devicetree/bindings/display/bridge/renesas,dsi.yaml b/Documentation/devicetree/bindings/display/bridge/renesas,dsi.yaml
index e08c24633926..5980df2b389b 100644
--- a/Documentation/devicetree/bindings/display/bridge/renesas,dsi.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/renesas,dsi.yaml
@@ -14,16 +14,17 @@  description: |
   RZ/G2L alike family of SoC's. The encoder can operate in DSI mode, with
   up to four data lanes.
 
-allOf:
-  - $ref: /schemas/display/dsi-controller.yaml#
-
 properties:
   compatible:
-    items:
+    oneOf:
       - enum:
-          - renesas,r9a07g044-mipi-dsi # RZ/G2{L,LC}
-          - renesas,r9a07g054-mipi-dsi # RZ/V2L
-      - const: renesas,rzg2l-mipi-dsi
+          - renesas,r9a09g057-mipi-dsi # RZ/V2H(P)
+
+      - items:
+          - enum:
+              - renesas,r9a07g044-mipi-dsi # RZ/G2{L,LC}
+              - renesas,r9a07g054-mipi-dsi # RZ/V2L
+          - const: renesas,rzg2l-mipi-dsi
 
   reg:
     maxItems: 1
@@ -49,34 +50,56 @@  properties:
       - const: debug
 
   clocks:
-    items:
-      - description: DSI D-PHY PLL multiplied clock
-      - description: DSI D-PHY system clock
-      - description: DSI AXI bus clock
-      - description: DSI Register access clock
-      - description: DSI Video clock
-      - description: DSI D-PHY Escape mode transmit clock
+    oneOf:
+      - items:
+          - description: DSI D-PHY PLL multiplied clock
+          - description: DSI D-PHY system clock
+          - description: DSI AXI bus clock
+          - description: DSI Register access clock
+          - description: DSI Video clock
+          - description: DSI D-PHY Escape mode transmit clock
+      - items:
+          - description: DSI D-PHY PLL multiplied clock
+          - description: DSI AXI bus clock
+          - description: DSI Register access clock
+          - description: DSI Video clock
+          - description: DSI D-PHY Escape mode transmit clock
 
   clock-names:
-    items:
-      - const: pllclk
-      - const: sysclk
-      - const: aclk
-      - const: pclk
-      - const: vclk
-      - const: lpclk
+    oneOf:
+      - items:
+          - const: pllclk
+          - const: sysclk
+          - const: aclk
+          - const: pclk
+          - const: vclk
+          - const: lpclk
+      - items:
+          - const: pllclk
+          - const: aclk
+          - const: pclk
+          - const: vclk
+          - const: lpclk
 
   resets:
-    items:
-      - description: MIPI_DSI_CMN_RSTB
-      - description: MIPI_DSI_ARESET_N
-      - description: MIPI_DSI_PRESET_N
+    oneOf:
+      - items:
+          - description: MIPI_DSI_CMN_RSTB
+          - description: MIPI_DSI_ARESET_N
+          - description: MIPI_DSI_PRESET_N
+      - items:
+          - description: MIPI_DSI_ARESET_N
+          - description: MIPI_DSI_PRESET_N
 
   reset-names:
-    items:
-      - const: rst
-      - const: arst
-      - const: prst
+    oneOf:
+      - items:
+          - const: rst
+          - const: arst
+          - const: prst
+      - items:
+          - const: arst
+          - const: prst
 
   power-domains:
     maxItems: 1
@@ -130,6 +153,41 @@  required:
 
 additionalProperties: false
 
+allOf:
+  - $ref: ../dsi-controller.yaml#
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: renesas,r9a09g057-mipi-dsi
+    then:
+      properties:
+        clocks:
+          maxItems: 5
+
+        clock-names:
+          maxItems: 5
+
+        resets:
+          maxItems: 2
+
+        reset-names:
+          maxItems: 2
+    else:
+      properties:
+        clocks:
+          minItems: 6
+
+        clock-names:
+          minItems: 6
+
+        resets:
+          minItems: 3
+
+        reset-names:
+          minItems: 3
+
 examples:
   - |
     #include <dt-bindings/clock/r9a07g044-cpg.h>